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Rain & rivers

Rain expected and rain that fell, and the gauges at action stage or above in Florida, each with NWS’s forecast. Flood warnings are the Live tracker’s.

Observed gauges / Forecast gauges / NWS warnings: feeds current

Observed gauges: Feed current; checked .

Forecast gauges: Feed current; checked .

NWS warnings: Feed current; checked .

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Moderate flooding

St. Johns River at Lake Harney, FL

Gauge
River gauge · GENF1 · NWS MLB
Observed
Observed 9.11 ft at : moderate flooding
Forecast
Forecast issued · crest 9.6 ft at : moderate flooding
Stages
Action 6 ft · Flood (minor) 8 ft · Moderate 9 ft · Major 10 ft
Forecasts
Forecasts are issued as needed during times of high water, but are not routinely available.

Forecast hydrograph

Forecast stage at Lake Harney, in ftNWS forecast for Lake Harney, issued 8 Nov 14:17Z: a crest of 9.6 ft at 13 Nov 06:00Z. Flood stage is 8 ft. Observed 9.11 ft at 8 Nov 16:30Z.5678910119 Nov 00Z10 Nov 00Z11 Nov 00Z12 Nov 00Z13 Nov 00ZAction 6 ftFlood (minor) 8 ftModerate 9 ftMajor 10 ftNowObservedUTCft
NWS forecast, issued : the line is the forecast stage, each dot one of NWS’s points; the ringed dot is the latest observation, when one at action stage or above is held. Earlier observations are not held here, so no observed line is drawn. Moderate flooding at its worst, observed or forecast. Data: NOAA/NWPS.
The forecast points as a table
TimeStage
9.1 ft
9.1 ft
9.1 ft
9.2 ft
9.2 ft
9.2 ft
9.2 ft
9.2 ft
9.3 ft
9.3 ft
9.3 ft
9.4 ft
9.4 ft
9.4 ft
9.4 ft
9.5 ft
9.5 ft
9.5 ft
9.6 ft
9.6 ft

What NWS lists at this gauge

  • 9.5 ft: Water begins to move into homes in low lying areas along the river. Flooding around the Black Hammock area near Lake Jesup.
  • 9.3 ft: Many secondary roads are flooded near Lake Harney. Flooding in the Hatbill Road area near Loughman Lake.
  • 9 ft: Water enters the first story of homes on Whitcomb Drive between Crossover Lane and Lake Harney Road. Water covers Mullet Lake Park.
  • 8.8 ft: Water covers Whitcomb Road.
  • 8.5 ft: Water surrounds homes on stilts on Prevatt road, entering garages on the first story. Water fills yards and ditches along Whitcomb Drive and Lake Harney Road. Roads flood in the Palm Shores and Mullet Lake areas.
  • 8.3 ft: Docks are partially submerged along the river between Lake Harney and Lemon Bluff.
  • 8 ft: Water moves into yards on Prevatt Road off State Road 46 near Lake Harney. Flooding of boat ramps and roads occurs in Mullet Lake Park.
  • 7.5 ft: Some docks, islands and small trees along the river north of Lake Harney will be covered with water, making boating hazardous.
  • 7 ft: Water approaches boat ramps, docks in Lake Jesup Park and Mullet Lake Park.
  • 6.5 ft: Minor flooding to a few low lying areas along the river.
  • 6 ft: No Wake Zones in effect and county parks closed for areas east of Lake Monroe to Lake Harney.

NWS’s statements for this gauge’s water at each stage, up to the highest observed or forecast. A gauge does not say whether a particular road or neighbourhood near it floods. Read .

NWPS’s page for GENF1 On the Live tracker’s map River flood warnings in Florida

Rain and rivers in Florida

  • Expected rain: 0.25 in or more at its highest in Florida, in WPC’s forecast for the 24 hours to . An amount for the area its contour covers, not a total for any one street.
  • Rain that fell: 0.25 to 0.5 in at its highest in Florida, in the 24 hours to , by MRMS’s radar estimate over a grid about 5 km across: a measurement of the past, not corrected to rain gauges.
  • Rivers: 9 gauges in flood in Florida, by NWS’s lists read . Major flooding St. Johns River at Cocoa, FL. Observed 16.95 ft at : moderate flooding. Forecast issued · crest 17.1 ft at : major flooding. And 8 more. A gauge measures its river at that spot, not whether a road or a neighbourhood floods.

Three sources, each its own window. None is a chance of flash flooding, which is WPC’s outlook above; a flash flood is a warning’s. Gauges in the Live tracker

On the Briefing’s map

River, coastal and lake gauges in Florida

Nine gauges in flood in Florida, observed or forecast. Choose one for its forecast hydrograph.

Major flooding 1

  1. Forecast: major flooding St. Johns River at Cocoa, FLObserved 16.95 ft at : moderate floodingForecast issued · crest 17.1 ft at : major flooding

Moderate flooding 3

  1. Forecast: moderate flooding St. Johns River at Astor, FLObserved 2.92 ft at : minor floodingForecast issued · crest 3.1 ft at : moderate flooding
  2. Observed: moderate flooding St. Johns River at Lake Harney, FLObserved 9.11 ft at : moderate floodingForecast issued · crest 9.6 ft at : moderate flooding
  3. Observed: moderate flooding Peace River at SR 70 Arcadia, FLObserved 15.27 ft at : moderate floodingForecast issued · highest 14.9 ft at : moderate flooding

Minor flooding 5

  1. Forecast: minor flooding St. Johns River at Deland, FLObserved 3.9 ft at : action stageForecast issued · crest 4.2 ft at : minor flooding
  2. Forecast: minor flooding St. Johns River at Sanford, FLObserved 5.33 ft at : action stageForecast issued · crest 5.9 ft at : minor flooding
  3. Observed: minor flooding Tide Station, FLObserved 1.06 ft at : minor flooding
  4. Observed: minor flooding Tide Station, FLObserved 1.27 ft at : minor flooding
  5. Observed: minor flooding Tide Station, FLObserved 1.16 ft at : minor flooding
Action stage, not flooding 16

Action stage is the level at which NWS and local officials begin to act; the water is not yet at flood stage.

  1. Observed: action stage Horse Creek at Arcadia at SR 72, FLObserved 11.09 ft at : action stageForecast issued · highest 10.8 ft at : action stage
  2. Observed: action stage St. Johns River at Buckman Bridge (I-295) (in MHHW), FLObserved 1.05 ft at : action stage
  3. Observed: action stage Crescent Lake, FLObserved 1.42 ft at : action stage
  4. Observed: action stage Dunns Creek State Park Boat Ramp (in MHHW), FLObserved 1.01 ft at : action stage
  5. Observed: action stage Georgetown (in NAVD88), FLObserved 1.81 ft at : action stage
  6. Observed: action stage Joshua Creek, FLObserved 12.68 ft at : action stage
  7. Observed: action stage Julington Creek, FLObserved 1.02 ft at : action stage
  8. Observed: action stage Loxahatchee River at Jupiter 5NW (in MHHW), FLObserved 1.2 ft at : action stage
  9. Observed: action stage Fisheating Creek at Lakeport at Highway 78, FLObserved 16.33 ft at : action stage
  10. Observed: action stage Myakka River at Myakka River State Park, FLObserved 6.5 ft at : action stageForecast issued · highest 6.5 ft at : action stage
  11. Observed: action stage Fisheating Creek at Palmdale, FLObserved 6.09 ft at : action stageForecast issued · highest 6.1 ft at : action stage
  12. Observed: action stage Shell Bluff Park (in NAVD88), FLObserved 1.43 ft at : action stage
  13. Observed: action stage St Johns River, FLObserved 1.06 ft at : action stage
  14. Observed: action stage Tide Station, FLObserved 1.05 ft at : action stage
  15. Observed: action stage Trout Creek Marina, FLObserved 1.02 ft at : action stage
  16. Observed: action stage Indian River at Wabasso (in MHHW), FLObserved 1.73 ft at : action stage

A gauge measures its water at that one place. Flash flooding, which comes in hours from heavy rain, is in the warnings as Flash Flood Warnings; a river can be in flood with no rain falling.

Gauges observed checked · Data: NOAA/NWS

Gauges forecast checked · Data: NOAA/NWS

Gauge impacts and forecasts checked · Data: NOAA/NWPS

Florida flash-flood briefing

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.